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Paper Abstract and Keywords
Presentation 2021-10-14 14:30
A Consideration of Seismic Detection with Distributed Acoustic Sensor using Image Processing and Recognition
Takahiro Arioka, Kentaro Nakamura (Tokyo Tech) OFT2021-42
Abstract (in Japanese) (See Japanese page) 
(in English) Distributed acoustic sensor (DAS) observes the intensity and phase of Rayleigh backscattered light to measure the strain caused along with the optical fiber at intervals of several meters. In this article, we analyzed DAS measurement data performed from November 8 to December 2, 2019, using the dark fiber of the Sanriku offshore optical communication cable for the submarine earthquake and tsunami observation system owned by the Earthquake Research Institute, the University of Tokyo for seismic detection. We utilized an image processing (Hough transform) and recognition (Convolutional Neural Network) method using images obtained by converting the vibration data into a frequency-wavenumber spectrum. The accuracy was 94.7%.
Keyword (in Japanese) (See Japanese page) 
(in English) Fiber Sensing / Distributed Acoustic Sensing / Seismic Observation / Hough transform / Convolutional Neural Network / / /  
Reference Info. IEICE Tech. Rep., vol. 121, no. 199, OFT2021-42, pp. 79-84, Oct. 2021.
Paper # OFT2021-42 
Date of Issue 2021-10-07 (OFT) 
ISSN Online edition: ISSN 2432-6380
Copyright
and
reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF OFT2021-42

Conference Information
Committee OFT  
Conference Date 2021-10-14 - 2021-10-15 
Place (in Japanese) (See Japanese page) 
Place (in English) Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To OFT 
Conference Code 2021-10-OFT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Consideration of Seismic Detection with Distributed Acoustic Sensor using Image Processing and Recognition 
Sub Title (in English)  
Keyword(1) Fiber Sensing  
Keyword(2) Distributed Acoustic Sensing  
Keyword(3) Seismic Observation  
Keyword(4) Hough transform  
Keyword(5) Convolutional Neural Network  
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Keyword(7)  
Keyword(8)  
1st Author's Name Takahiro Arioka  
1st Author's Affiliation Tokyo Institute of Technology (Tokyo Tech)
2nd Author's Name Kentaro Nakamura  
2nd Author's Affiliation Tokyo Institute of Technology (Tokyo Tech)
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Speaker Author-1 
Date Time 2021-10-14 14:30:00 
Presentation Time 25 minutes 
Registration for OFT 
Paper # OFT2021-42 
Volume (vol) vol.121 
Number (no) no.199 
Page pp.79-84 
#Pages 6 
Date of Issue 2021-10-07 (OFT) 

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